In the bustling, stinky, and glorious underworld of the city's sewers, there's only one detective who can handle the really dirty work: Detective Poop. A man of the earth, literally.

But when the entire sewer rat population vanishes without a trace, leaving behind only a mysterious, shimmering residue, Detective Poop is faced with his most perplexing case yet. With the help of a nervous, fast-talking rat named Remy, the duo must follow a trail of clues that leads them straight to the Great Septic Tank and its grumpy, germ-hating villain, Blockage.

Blockage has a sinister plan to "repurpose" the rats for a cleaner, more orderly world, and he's not afraid to flush anyone who gets in his way. Can this unlikely pair save the sewer from a disastrously clean fate? Or will Detective Poop get to the bottom of this case once and for all?

Penelope Poot lives in Vancouver, Canada with her husband, their four kids, and three cats. She writes hilarious potty humour stories for children.